I am selecting multiple lines (ctrl/shift+click) from the grid on the Sales Order screen and want an action to have access to what was selected. How do I access the list of what's selected on the grid from the code behind?
As stated, add the selected screen. First you would add a DAC extension to add the selected field, which is not a DB field.
#region Selected
[PXBool]
[PXUIField(DisplayName = "Selected")]
public virtual bool? Selected { get; set; }
public abstract class selected : PX.Data.BQL.BqlBool.Field<selected> { }
#endregion
From there, you can add the selected field to your table in the UI. Also, ensure that commit changes is set on that field, or an action that you may call to query.
Finally, you can just run a foreach for the view, and check for the selected field you added:
foreach (SOLine line in Base.Transactions.Select())
{
SOLineExt lineExt = line.GetExtension<SOLineExt>();
if (line.Selected == true)
{
//execute code on the record
}
}
Related
First post here so be gentle please :)
I am creating an ASP.NET with MVC web app that shows a list of items of the same class (Laptop)
I want to create a Dropdown list in the main view below each title that will allow me to filter the results OnChange - hence the selection is empty, but the user can click and select the value in the DropDown list, and the main view items list will update immediately according to the selection.
This is how the list looks now:
Snapshot of the list
I want to implement a dropdown, but I can't seem to get the selected value from the dropdown: (The DropDownlist is populated properly, and working)
<select class="form-control" asp-items="Html.GetEnumSelectList<purpose>()"
onchange="#{Model = Model.Where(m=>m.Purpose == /*HERE SHOULD BE THE VALUE SELECTED*/)}">
<option selected="selected" value="">-Select one-</option>
</select>
And then refreshing the page... but - how do I get the selected value from inside the selection?
If it was in JavaScript I would have done:
html.document.getElementById("The id of the selection").value
but I don't want JavaScript since this is all ASP.NET
To be clear, I have 5 different dropdown lists to filter by, and they can be selected or not.
You're mixing up client-side vs. server-side code. The example below uses only MVC and a full client-server architecture. Each request requires a round-trip to the server.
You have 3 components in this scenario.
ProductsViewModel.cs
public class ProductsViewModel
{
public IList<Laptop> Laptops { get; set; }
public PurposeEnum Purpose { get; set; }
}
ProductsController.cs
public class ProductsController : Controller
{
[HttpGet]
public IActionResult Index()
{
// Retrieve all records without a filter
var unfiltered = db.Laptops.ToList();
var viewModel = new ProductsViewModel() { AvailableLaptops = unfiltered };
return View(viewModel);
}
[HttpPost]
public IActionResult Index(ProductsViewModel viewModel)
{
// Use viewModel.Purpose & viewModel.Maker to filter records from database
var filtered = db.Laptops.Where(l => l.Purpose == viewModel.Purpose).ToList();
var filteredViewModel = new ProductsViewModel()
{
AvailableLaptops = filtered,
Purpose = viewModel.Purpose
};
return filteredViewModel;
}
}
Products\Index.cshtml
#model MyNameSpace.ViewModel
using (BeginForm())
{
#Html.DropDownList(Html.GetEnumSelectList<PurposeEnum>())
foreach (var l in Model.AvailableLaptops)
{
// Loop through Model.AvailableLaptops and generate table
}
<input type="submit" value="Search" />
}
When you visit the URL /Products/Index for the first time, the GET action handler will be triggered. It will generate an unfiltered list of your products along with the dropdown list required for filtering.
When you make your selection and submit the form, the POST action handler will be triggered, and use the selected values in the Purpose and Maker properties of the view model to filter the records. The same view is generated, but with a filtered down list of products.
This is very basic code that ignores validation, error handling and security.
Under ax 2009 my requirement is to open a dialog box when I opens a report and it should show a drop down. So currently my drop down is SiteId from InventSite table. As show in code below.
public class ReportRun extends ObjectRun
{
//Dialog
DialogField dfSiteName;
//Range
InventSiteId siteName;
}
public boolean getFromDialog()
{
;
siteName = dfSiteName.value();
return true;
}
public Object dialog(Object _dialog)
{
DialogRunBase dialog;
FormDateControl siteNameControl;
;
dialog = super(_dialog);
dialog.caption("Sales Overview Range Dialog");
dialog.addGroup("Selec Range");
dfSiteName = dialog.addField(typeid(InventSiteId),"Site","Select Range");
siteNameControl = dfSiteName.control();
siteNameControl.mandatory(true);
return dialog;
}
Everything is working fine with this code. Now instead drop down of SiteId from InventSite table in dialog box I want drop down of Dimension[1] from InventSite table in dialog box. I am not able to do that. Please guide me on this.
If you code work fine and you want to add only the Dimension[1] from inventSite table go to AOT\Data Dictionary\Tables\InventSite\Field Groups\AutoLookup here you there you will see SiteId and Name fields. You need to add new field then go to properties of this new field and select in property DataField the field that you need.
If you add this new field will be visible in all lookups for InventSiteId edt.
I have a requirement in my project which specifies to display 2 textboxes based on a checkbox is checked. For every check box selected the 2 textboxes are the same. The twist is the check box list is dynamic to accomodate additions in the future. The check box list comes from DB.
How can this be done in JSF?
You can use valueChangeListener property of tag.
<h:selectManyCheckbox id="" value="#{bean.selectedItems}" valueChangeListener="#{bean.renderTextBox}">
<f:selectItems value="#{bean.checkBoxList}"/>
</h:selectManyCheckbox>
<h:inputText value="" rendered="#{bean.render}"/>
Have property called render in your bean.
In valuechange method i.e renderTextBox write following code
public void renderTextBox(event)
{
if(isInvokeApplicationPhase(event))
{
//change the value of render property to true or false depending on checkbox is checked or not
}
}
public boolean isInvokeApplicationPhase(FacesEvent event){
if(event.getPhaseId() != PhaseId.INVOKE_APPLICATION){
event.setPhaseId(PhaseId.INVOKE_APPLICATION);
event.queue();
return false;
}
return true;
}
And to get checkbox list from database write following method
public List getcheckBoxList()
{
public List checkBoxList = null
// retrieve list of checkbox from your db(write query here and assign returned list to checkBoxList variable and return that varaible)
}
getcheckBoxList() is a getter method. I've bound checkBoxList variable to <f:selectItems> tag
You can use javascript to hide and display the input box
var checkbox=document.getElementById("ID");
if(checkbox.value== 'null')
checkbox.style.display = "none";
else
checkbox.style.display = "inline";
I am using two user controls in my web application. I want to read a Label text from a user control via another user control. How can i read it?
You should refactor your code and not rely to content of some label on another UI control. Get that value the same way as you do in that User Control, or extract that functionality in another class to avoid code duplication, and call it from both places.
But, if you wont to stick with this existing code you should create Interface and capture all UserControls functionality that you wont to called from outside code (in your case : return label text). Then implement that interface in User Controls that must be called from outside, after that is all about finding control instances, you can do that by enumerating all Page child controls. Here is the example code of simple interface that defines that control must return some Label text, and a class that finds user control by name in control tree :
public interface IUserControl
{
string LabelText();
}
public class PageUserControls
{
private Page parentPage;
public PageUserControls(Page myParentPage)
{
this.parentPage = myParentPage;
}
private IEnumerable<Control> EnumerateControlsRecursive(Control parent)
{
foreach (Control child in parent.Controls)
{
yield return child;
foreach (Control descendant in EnumerateControlsRecursive(child))
yield return descendant;
}
}
public IUserControl GetControl(string controlName)
{
foreach (Control cnt in EnumerateControlsRecursive(this.parentPage))
{
if (cnt is IUserControl && (cnt as UserControl).AppRelativeVirtualPath.Contains(controlName))
return cnt as IUserControl;
}
return null;
}
}
then you have to implement that interface in user control that holds that Label :
public partial class WebUserControl1 : System.Web.UI.UserControl, IUserControl
{
public string LabelText()
{
return Label1.Text;
}
}
And finally use it from another User control :
PageUserControls puc = new PageUserControls(this.Page);
string txt1 = puc.GetControl("WebUserControl1.ascx").LabelText();
btw. method EnumerateControlsRecursive is adopted from SO answer to Finding all controls in an ASP.NET Panel?
use like this...
create one public property in the user control and call that property using user controls name where you want that value....
Take a look at this article on MSDN.
In a short, you can access other controls if you know the ID.
This problem has bugged me for several years and maybe someone here knows a simple solution, since I just ran into it again.
QUESTION: Is there any way to get the XtraGrid to "forget" the current focused row index before a new (different) datasource is assigned to the grid?
BACKGROUND
We use the XtraGrid as a kind of controller for what is displayed in another panel of a multipane Winform.
Now imagine a hypothetical scenario where the datasource of the XtraGrid keeps changing according to menu selections. Menu item 1 populates the grid with a list of today's entrees in the cafeteria: Id, Name. Menu item 2 populates the grid with a list of Customers the user must phone that day: ID, Name. Important thing is that these are separate distinct datasources, and the grid's datasource is being assigned and reassigned.
CRITICAL FACT FOR THIS QUESTION:
We want the grid's FocusedRowChanged event to be the single place where we trap the user's selection in the controller grid. We are a "no spaghetti code" shop. FocusedRowChanged is better than a click event because it handles keyboard navigation too. The row with the focus contains the ID of the detail record we need to fetch from the database for display in Panel #2. This works--most of the time.
Here's how it doesn't work: let's say that on a given day, the list of customers the user must contact contains only one row. So the first (and only) row in the grid is the focused row. Now let's say that the user goes up to the menu and selects the menu item to display the day's cafeteria entrees. When the user clicks on the first item in the Entrees list, the FocusedRowChanged event does NOT fire because the grid has retained a memory of the focused row index from the previous datasource. The focused row index has not changed. And thus the user's selection doesn't trigger anything.
I tried to get DevExpress to offer a second more row-object-oriented mode (as distinct from row-index-oriented approach) whereby each row in the grid would have a GUID, and the FocusedRowChanged event would fire whenever the GUID of the currently focused row differed from the GUID of the previously focused row, regardless of whether the focused row index happened to be the same. This would allow dynamic changes of datasource and enable the desired behavior. But they demurred.
So I'll ask my question again, Is there any way to get the XtraGrid to "forget" the current focused row index before a new datasource is assigned to the grid?
Tim, I had the exact same problem when the grid only had one row of data in it and then changed data sources. I solved it by setting the gridview.FocusedRowHandle = -1 after setting the new datasource.
In a similar situation, I am subscribing to the
FocusedRowObjectChanged
event (using DevExpress 16.1).
I think that the best solution to this problem is to create a new GridView object and override its DoChangeFocusedRowInternal method. Below you will find the default implementation of this method. All you need to do is to change the marked row just as your needs dictate. Also, take a look at the How to create a GridView descendant class and register it for design-time use article, it contains some useful information.
public class MyGridView : GridView {
protected override void DoChangeFocusedRowInternal(int newRowHandle, bool updateCurrentRow) {
if(this.lockFocusedRowChange != 0) return;
if(!IsValidRowHandle(newRowHandle))
newRowHandle = DevExpress.Data.DataController.InvalidRow;
if(FocusedRowHandle == newRowHandle) return; // <<<<<<
int currentRowHandle = FocusedRowHandle;
BeginLockFocusedRowChange();
try {
DoChangeFocusedRow(FocusedRowHandle, newRowHandle, updateCurrentRow);
}
finally {
EndLockFocusedRowChange();
}
RaiseFocusedRowChanged(currentRowHandle, newRowHandle);
}
}
UPDATE
My code:
namespace MyXtraGrid {
public class MyGridControl : GridControl {
protected override BaseView CreateDefaultView() {
return CreateView("MyGridView");
}
protected override void RegisterAvailableViewsCore(InfoCollection collection) {
base.RegisterAvailableViewsCore(collection);
collection.Add(new MyGridViewInfoRegistrator());
}
}
public class MyGridViewInfoRegistrator : GridInfoRegistrator {
public override string ViewName { get { return "MyGridView"; } }
public override BaseView CreateView(GridControl grid) {
return new MyGridView(grid as GridControl);
}
}
public class MyGridView : GridView {
public MyGridView(GridControl ownerGrid) : base(ownerGrid) { }
public MyGridView() { }
protected virtual bool RowEqual(int focusedRowHandle, int newRowHandle) {
if(IsDesignMode)
return focusedRowHandle == newRowHandle;
DataRow row1 = GetDataRow(focusedRowHandle);
DataRow row2 = GetDataRow(newRowHandle);
return row1 == row2;
}
protected override void DoChangeFocusedRowInternal(int newRowHandle, bool updateCurrentRow) {
if(this.lockFocusedRowChange != 0) return;
if(!IsValidRowHandle(newRowHandle))
newRowHandle = DevExpress.Data.DataController.InvalidRow;
if(RowEqual(FocusedRowHandle, newRowHandle))
return;
int currentRowHandle = FocusedRowHandle;
BeginLockFocusedRowChange();
try {
DoChangeFocusedRow(FocusedRowHandle, newRowHandle, updateCurrentRow);
}
finally {
EndLockFocusedRowChange();
}
RaiseFocusedRowChanged(currentRowHandle, newRowHandle);
}
}
}
You can subscribe on the DataSourceChanged event which will fire when Data source changes (you guessed it!) so then you can get using GetFocusedObject() the object and display the relevant items for the other grid...